You have a 20/35 chance, or 4/7 simplified, of picking a pink or yellow ball.
19% is 0.19. 0.19 x 90 is 17.1. Clarence saved $17.1
First add -2 and -6 together
Since these are both negitive signs you will add normally and and a negitive sign to the answer
-8
so you have...
-8 + 7
Since there is a negative (-8) and a positive (7) you will treat this as a normal subtraction problem, except your answer will have the sign of the biggest number
8 - 7 = 1
8 is the bigger number and has a negative sign therefore the answer is a negative number
so...
-8 + 7 = -1
-1
Hope this helped!
~Just a girl in love with Shawn Mendes